Sergey Sazonov
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Sergey Sazonov Email & Phone Number

Technical Lead at Welltory Health App
Location: Novi Sad, Vojvodina, Serbia 9 work roles
1 work email found @welltory.com LinkedIn matched
✓ Verified August 2026 3 data sources Profile completeness 86%

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Current company
Role
Technical Lead
Location
Novi Sad, Vojvodina, Serbia
Company size

Who is Sergey Sazonov? Overview

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Quick answer

Sergey Sazonov is listed as Technical Lead at Welltory Health App, a with 78 employees, based in Novi Sad, Vojvodina, Serbia. AeroLeads shows a work email signal at welltory.com and a matched LinkedIn profile for Sergey Sazonov.

Sergey Sazonov previously worked as Software Engineer at Welltory Health App and Individual Entrepreneur at Self-Employed.

Company email context

Email format at Welltory Health App

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{first}.{last}@welltory.com
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Profile bio

About Sergey Sazonov

Seasoned Python developer with a robust track record of engineering and optimizing high-load, data-intensive distributed systems. My expertise spans across designing scalable architectures and integrating advanced data processing technologies to enhance performance and reliability. With a diverse professional background in IT services, I have excelled in both technical and management roles, providing expert support and strategic consulting to drive business success and technological innovation.Throughout my career, I have committed to continuous learning and adapting, ensuring that I deliver cutting-edge solutions that meet complex challenges. My approach combines deep technical skills with a strategic outlook, making me a dependable partner in achieving both immediate goals and long-term growth.#Data-Intensive Applications #DataLake #Serverless #AWS #Python

Listed skills include Business Development, Cloud Computing, Management, Enterprise Software, and 24 others.

Current workplace

Sergey Sazonov's current company

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Welltory Health App
Welltory Health App
Technical Lead
Novi Sad, RS
Website
Employees
78
AeroLeads page
9 roles

Sergey Sazonov work experience

A career timeline built from the work history available for this profile.

Software Engineer

Current

Novi Sad, Vojvodina, Serbia

Projects:JournalDistributed, multi-source, AI-powered Journal of user's health and wellness-related events, activities, science-based opinions, and recommendations.Technologies:- Languages and frameworks: Python Asyncio, JavaScript, FastAPI, SLQAlchemy, Alembic- Databases/Storages: PostgreSQL, AWS S3, AWS DynamoDB, ElasticSearch, Redis- Messaging: Apache Kafka, AWS SQS, AWS SNS, AWS Kinesis Firehose- Execution Environment: AWS Lambda, Kubernetes- Infra: IaC(Terraform)- Other: LLM code-generation pipelinesRnD ProjectsDelivery top-notch health-science algorithms to users at scale.- HRV Measurement processing (~1m measurements per day, ~12 Transactions Per Second)- Blood Pressure Measurement processing- User Workday/Productivity Opinion- Backend for Today Screen feature- User feedback processingTechnologies:- Languages and frameworks: Python Asyncio, FastAPI- Databases/Storages: AWS DynamoDB, PostgreSQL, ElasticSearch, AWS S3, Redis- Messaging: AWS SQS, AWS SNS, AWS Kinesis Firehose- Other: Apache Airflow- Execution Environment: AWS Lambda, Kubernetes- Infra: IaC(Terraform)Data Import SystemStabilization, optimization and extension set of legacy services that import health and wellness related user data fromexternal sources to Welltory legacy data processing system as well as to newly-designed DataLakeExamples of external data sources: AppleHealth, Garmin, Oura, Rescuetime, etc - 20+ integrations in total.Technologies:- Languages and frameworks: Python, Django/DRF, Celery- Databases/Storages: PostgreSQL, Apache Cassandra, ElasticSearch, AWS S3, Redis- Messaging: AWS SQS, RabbitMQ- Execution Environment: Kubernetes

Jan 2022 - Present

Individual Entrepreneur

Self-Employed
Dec 2018 - Dec 2021

Business Manager

Moscow, Russian Federation

Responsible for overall Business Management and Operations in Enterprise Services RussiaActing as a key supporting resource to Services Director I took over extended set of Services-wide responsibilities including:• Alignment, execution of business rhythm within services department (consulting, support, sales, operations) and cross-segment (EPG/PS/Office of COO, HQ)• Budget planning, scorecard planning, target setting, MBU/QBU, MYR• Execution planning and tracking• Change management• End-to-end Operations• Compliance• Project management• Vendor management

Nov 2013 - Nov 2018

Services Sales Excellence Lead

Responsible for implementation of Services Sales Processes, sales and business operations, adoption of relevant tools and cross-segment collaboration.Keeping my report line to Services Director I have extended the area of focus and responsibility to Sales excellence and operations by:• Establishment of key Services Sales business processes: Forecast Management rhythm, opportunity review board, deal review boards on various levels• Adoption of relevant Sales Management tools (GSX, EBMS and BMX)• Development of Sales Strategy, Model, Territory coverage. Target, quota setting and distribution. Ongoing quota/territory management• Management of cross-segment (EPG/PS/SMSP) alignment on Territory and Account Coverage. Targets and quota distribution, performance management• Development and implementation of cross-segment services ROB and reporting to facilitate alignment and support effective discussion and decision-making• Support for Sales Director and Services director in sellers performance forecasting and management. Drive Sales capabilities assessment, readiness and development planning• Services Scorecard attainment forecasting and management• Ownership on Services Scorecard and Services metric on Sub Scorecard, GPF, MYR, Budget top-line planning

Apr 2012 - Oct 2013

Service Line Lead (Business Group Lead Enterprise Services)

Responsible for subsidiary level strategy execution through service line marketing activities and target setting to enable field landing/execution through service sales and delivery:• Strategic growth planning and ownership: long-term headcount planning, sourcing strategy, sales capacity and capabilities improvement• Microsoft Services and Subsidiary scorecard delivery planning, alignment with EPG, Marketing, Partner (Segment Alignment Workshop). Owner for Services Metric at Subsidiary scorecard• Owner of Services Marketing planning and execution, including market research, collaboration with EPG Marketing, demand generation events, printed materials• Corporate and HQ programs landing

Mar 2011 - Apr 2012

Practice Manager: Premier Support

As a Manager of the Support Practice working with Telecom and Communications Sector customers I’m responsible for following areas in Microsoft Premier Support business:• Business Development management. • Customer Satisfaction• Operational Excellence• Support Services Delivery Management • People ManagementIn the role I’m being the only front line, customer facing support manager within the Services organization responsible for the Microsoft Premier Support business development in Telecom and Communications Sector Market, overall quality and satisfaction of a customer’s managed support relationship.

Apr 2007 - Feb 2011

Technical Account Manager

Building relations with IT organizations of biggest Telecom companies in Russian market. Managing Microsoft Premier Support services delivery for Telco vertical.

May 2004 - Apr 2007

Consultant

Acting as Consultant in IT Infrastructure projects for several representative offices of Danish and English companies: Dirol-Catburry, Dandy Distribution, Velux, Wavin, Bech-Bruun Dragsted, e.t.c.Major competencies: Microsoft Infrastructure Products, Nortel Contivity Switches, Unix

Jan 2001 - Apr 2004
Team & coworkers

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FAQ

Frequently asked questions about Sergey Sazonov

Quick answers generated from the profile data available on this page.

What company does Sergey Sazonov work for?

Sergey Sazonov works for Welltory Health App.

What is Sergey Sazonov's role at Welltory Health App?

Sergey Sazonov is listed as Technical Lead at Welltory Health App.

What is Sergey Sazonov's email address?

AeroLeads has found 1 work email signal at @welltory.com for Sergey Sazonov at Welltory Health App.

Where is Sergey Sazonov based?

Sergey Sazonov is based in Novi Sad, Vojvodina, Serbia while working with Welltory Health App.

What companies has Sergey Sazonov worked for?

Sergey Sazonov has worked for Welltory Health App, Self-Employed, Microsoft, and Infochain Llc.

Who are Sergey Sazonov's colleagues at Welltory Health App?

Sergey Sazonov's colleagues at Welltory Health App include Rail Alimov, Ekaterina Medvedeva, Amin Benarieb, Evgeny Teilor, and Elizaveta Morozova.

How can I contact Sergey Sazonov?

You can use AeroLeads to view verified contact signals for Sergey Sazonov at Welltory Health App, including work email, phone, and LinkedIn data when available.

What skills is Sergey Sazonov known for?

Sergey Sazonov is listed with skills including Business Development, Cloud Computing, Management, Enterprise Software, Partner Management, It Strategy, Solution Architecture, and Product Management.

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